Samsung Galaxy J7 vs Samsung Galaxy A21s

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

5.5 inches
6.5 inches

Resolution:

1280 x 720 pixels, 267 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI

Technology:

Super AMOLED
TFT

Screen-to-body:

69.72 %
82.94 %

Colors:

16 777 216

Touchscreen:

Capacitive, Multi-touch

Features:

Ambient light sensor, Proximity sensor
Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 615 8939
Samsung Exynos 850

Processor:

Octa-core, 1500 MHz, ARM Cortex-A53, 64-bit
Octa-core, 2000 MHz, Arm Cortex-A55, 64-bit

GPU:

Adreno 405
Mali-G76

RAM:

1.5GB LPDDR3
3GB LPDDR4

Internal storage:

16GB, available to use: 11.6 GB
32GB (eMMC 5.1), available to use: 19.5 GB

Storage expansion:

microSDXC up to 128 GB
microSDXC up to 512 GB

Device type:

Smartphone
Smartphone

OS:

Android (6.0 Marshmallow, 5.1 Lollipop)
Android (10), Samsung One UI

Battery

Capacity:

3000 mAh
5000 mAh

Type:

User replaceable
Li - Polymer, Not user replaceable

Battery life test results:

Charging:

Fast charging

Camera

Rear:

Single camera
Quad camera

Main camera:

13 MP (Autofocus)
48 MP (PDAF)

Specifications:

Aperture size: F1.9; Focal length: 28 mm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera:

8 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera:

2 MP (Macro)

Specifications:

Aperture size: F2.4

Fourth camera:

2 MP (Depth information)

Specifications:

Aperture size: F2.4

Video recording:

1920x1080 (Full HD) (30 fps)
1920x1080 (Full HD) (30 fps)

Features:

Video calling

Front:

5 MP (Flash)
13 MP

Video capture:

1920x1080 (Full HD)

Design

Dimensions:

6.00 x 3.09 x 0.30 inches (152.4 x 78.6 x 7.5 mm)
6.44 x 2.96 x 0.35 inches (163.7 x 75.3 x 8.9 mm)

Weight:

6.03 oz (171.0 g)
6.77 oz (192.0 g)

Biometrics:

2D Face unlock, Fingerprint (touch)

Features:

Touch sensitive control keys

Keys:

Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Black, Gold, White
Black, White, Blue, Red

Cellular

LTE (FDD):

Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD):

Bands 40(2300)
Bands 38(2600), 40(2300), 41(2600+)

UMTS:

Bands 5(850), 8(900), 2(1900), 1(2100)
Bands 5(850), 8(900), 2(1900), 1(2100)

Data Speed:

LTE, HSPA
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM:

Yes
Yes

SIM type:

Micro SIM
Nano SIM

Multimedia

Headphones:

3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Album art cover, Background playback

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM, RDS

Connectivity & Features

Bluetooth:

4.1
5.0

Wi-Fi:

802.11 b, g, n; Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

microUSB, USB 2.0
Type-C (reversible), USB 2.0

Features:

Mass storage device, Charging
Charging

Location:

GPS, A-GPS, Glonass
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Hall (for flip covers)
Accelerometer, Gyroscope

Other:

ANT+
NFC

Phone features

Notifications:

Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone

Other features:

Voice dialing, Voice commands, Voice recording

Buyers information

Price:

$ 234
€ 240

User Manual:

This is the official Samsu​ng Galaxy A21s User Guide in English provided from the manufacturer.

Availability

Officially announced:

Jul 16, 2015
May 15, 2020
This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at https://www.parsintl.com/phonearena or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit https://www.parsintl.com/ for samples and additional information.
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